JP2002360966A - Washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save energy for circulating of hot air drying operation and con sumption of cooling water. SOLUTION: At the initial stage of drying operation, a washing and dewatering tub is rotated at high speed while heating, and the water cooling and dehumidifier start time is controlled according to the quantity of wash so as to reduce the heating power in drying operation and the consumption amount of cooling water. According to the wash (dried material), the washing and drying method is set to thereby realize efficient hot air drying operation hardly causing wrinkles.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a washing and drying machine.

[0002]

2. Description of the Related Art In a washing operation, a washing and drying machine performs a washing operation in which tap water (washing water) is supplied and then a stirring blade is rotated forward and reverse to apply mechanical force to washing clothes. A dehydration operation in which water (rinsing water) is supplied and a rinsing operation in which a mechanical force is similarly applied to the laundry is performed, and then the washing and dewatering tub is rotated to centrifugally dehydrate the rinsing water contained in the laundry. Run, and then,
This is a configuration in which a drying operation is performed in which hot air is supplied to the washing and dewatering tub to dry the laundry.

As a washing and drying machine for performing such a series of operations, Japanese Patent Application Laid-Open Nos. 11-347281, 11-347282, and 11-34729.
No. 6 publication.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide an efficient washing and drying machine.

[0005]

In order to solve the above-mentioned problems, the present invention provides a washing and dewatering tub installed in an outer tub, a rotating body installed at the bottom of the washing and dewatering tub, and the washing and dewatering tub. A driving device that rotationally drives the water tank and the rotating body; a hot air supply unit that supplies hot air; and a control device that controls the driving unit and the hot air supply unit. And the first drying operation in which the washing and dewatering tub is rotated and operated is rotated at a higher speed than the second drying operation in which the washing and dewatering tub is rotated and operated.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a washing and dewatering tub installed in an outer tub, a rotating body installed at the bottom of the washing and dewatering tub, A driving device for rotating the rotating body; a hot air supply unit for supplying hot air; and a control device for controlling the driving unit and the hot air supply unit. In the drying operation, hot air is supplied by the hot air supply unit. And a first drying operation in which the washing and dewatering tub is rotated to operate a second drying operation in which the washing and dewatering tub is rotated.
A washing and drying machine characterized in that the rotation speed is higher than that of the drying operation. According to this configuration, the drying efficiency is improved because the hot air is uniformly applied to the laundry in the washing and dewatering tub together with the dehydration effect by the first drying operation, and the drying efficiency is improved, and the power is suppressed by the second drying operation. And an efficient washing and drying machine can be obtained.

The invention according to claim 2 of the present invention provides:
A washing and dewatering tub installed in the outer tub, a rotating body installed at the bottom of the washing and dewatering tub, a driving device for rotating the washing and dewatering tub and the rotating body, a drain solenoid valve, and hot air supply Hot air supply means, the drive means and the drain solenoid valve,
A controller for controlling the hot air supply means, wherein in the drying operation, hot air is supplied by the hot air supply means, and the washing and dewatering tub is rotated in a state where the drainage solenoid valve is opened to perform a dehydration operation. A washing and drying machine characterized by performing a first drying operation and a second drying operation for rotating the washing and dewatering tub at a lower speed than the first drying operation. According to this configuration, the drying efficiency is improved because the hot air is uniformly applied to the laundry in the washing and dewatering tub together with the dehydration effect by the first drying operation, and the drying efficiency is improved, and the power is suppressed by the second drying operation. And an efficient washing and drying machine can be obtained.

[0008] The invention described in claim 3 of the present invention provides:
3. The washing and drying machine according to claim 1, wherein the washing and drying machine has a water-cooled dehumidifier that cools and dehumidifies air in the outer tub,
A washing / drying machine, wherein the second drying operation is performed after the drying operation, and the water-cooled dehumidifier is operated from the second drying operation. According to this configuration, in addition to the effects of the first and second aspects, the water-cooled dehumidifier is operated from the second drying operation, so that water can be saved.

Further, the invention according to claim 4 of the present invention provides:
3. The washing and drying machine according to claim 1, wherein the washing and drying machine has a water-cooled dehumidifier that cools and dehumidifies air in the outer tub,
The second drying operation is performed after the drying operation, and the water-cooling dehumidifying unit is operated from the second drying operation, and the first drying operation time is set according to the amount of laundry. It is a washing and drying machine. According to this configuration, in addition to the effects of the first and second aspects, the first drying operation time is set according to the amount of the laundry, so that the drying time and power efficiency can be improved.

The invention according to claim 5 of the present invention provides:
3. The first drying device according to claim 1, wherein the washing and drying machine includes a water-cooled dehumidifier that cools and dehumidifies the air in the outer tub, and a humidity detector that detects the humidity of the air in the outer tub. 4. A washing / drying machine characterized in that the water-cooled dehumidifying means is operated when the humidity decreases to a predetermined value during operation. According to this configuration, in addition to the effects of the first and second aspects, the water-cooling dehumidifier is operated by detecting the humidity, so that the drying time and the power efficiency can be improved.

Further, the invention according to claim 6 of the present invention provides:
The first drying operation according to claim 1 or 2,
And / or stopping the rotation of the washing and dewatering tub in a second drying operation, and rotating the rotator to rotate the laundry. According to this configuration, in addition to the effects of the first and second aspects, uneven drying of the laundry can be prevented.

[0012] The invention described in claim 7 of the present invention provides:
The first drying operation according to claim 1 or 2,
And / or stopping the rotation of the washing and dewatering tub in a second drying operation, and rotating the rotating body with a rotating force corresponding to the amount of the laundry. According to this configuration, in addition to the effects of the first and second aspects, uneven drying of the laundry can be efficiently prevented.

The invention according to claim 8 of the present invention provides:
The washing / drying machine according to claim 1 or 2, further comprising a function capable of selecting only a drying operation. According to this configuration, in addition to the effects of the first and second aspects, it is possible to cope with the operation only when the laundry is to be dried and the convenience is improved for the user.

The invention according to claim 9 of the present invention provides:
3. The control device according to claim 1, wherein the control device sets a course setting switch for setting a type of operation (washing / drying) to be performed and a mode setting switch for setting a method of performing washing and drying according to the laundry (drying material). A washing and drying machine comprising: According to this configuration, in addition to the effects of the first and second aspects, it is possible to provide a washing / drying machine that is easy to use for the user.

According to a tenth aspect of the present invention, in the first or the second aspect, the control device is configured to perform the drying operation in the drying mode for laundry that is easily wrinkled.
A washing and drying machine characterized in that the washing and dewatering tub is configured to be executed in a state of being rotated at a very low speed. According to this configuration, in addition to the effect of the first or second aspect, it is possible to preferably dry the laundry that easily becomes wrinkled.

The invention according to claim 11 of the present invention provides a washing and dewatering tub installed in an outer tub, a rotating body installed at the bottom of the washing and dewatering tub, and the washing and dewatering tub and the rotating body. A driving device that rotationally drives the device, a hot air supply unit that supplies hot air, and a control device that controls the driving unit and the hot air supply unit.In the drying operation, hot air is supplied by the hot air supply unit. The washing and drying machine is characterized in that the washing and dewatering tub is rotated at a rotation speed according to the amount of laundry. According to this configuration, the washing and dewatering tub can be rotated according to the amount of cloth, and an efficient drying operation can be performed.

The invention according to claim 12 of the present invention provides a washing and dewatering tub installed in an outer tub, a rotating body installed at the bottom of the washing and dewatering tub, and the washing and dewatering tub and the rotating body. A driving device that rotationally drives the device, a hot air supply unit that supplies hot air, and a control device that controls the driving unit and the hot air supply unit.In the drying operation, hot air is supplied by the hot air supply unit. A washing and drying machine characterized in that the washing and dewatering tub is rotated at a rotation speed according to the quality of the laundry. According to this configuration, the washing and dewatering tub can be rotated in accordance with the quality of the cloth, and an efficient drying operation can be performed.

[0018]

FIG. 1 is a schematic diagram showing a vertical section of a washing and drying machine according to an embodiment of the present invention.

Reference numeral 1 denotes a frame constituting an outer shell. 2 is
A washing and dewatering tub having a water passage hole 2a on a peripheral wall thereof, a fluid balancer 3 provided on an upper edge portion thereof, and a rotating body 4 rotatably installed inside a bottom portion. The rotating body 4 has a large diameter (preferably 90% or more of the diameter of the washing and dewatering tub 2) and is curved so as to raise a peripheral edge, and a water passage hole 4a is provided in a lower region. Reference numeral 5 denotes an outer tub that contains the washing and dewatering tub 2. A driving device 6 is attached to the outside of the bottom by a steel plate-attached base 7, and a vibration isolating support device 8 is provided from four corners at the upper end of the outer frame 1. Support to be suspended.

The drive unit 6 incorporates a drive motor, an electric operation clutch mechanism and a planetary gear reduction mechanism, and
The rotating body 4 is rotated (stirring mode) in a state where is stationary, and the washing and dewatering tub 2 and the rotating body 4 are rotated in opposite directions (washing mode), respectively. Has a selective drive function of rotating in the same direction (dehydration / drying mode).

Upper cover 9 having a clothing input opening 9a formed thereon
Is fitted to the edge of the opening so as to cover the upper opening of the frame 1 and is attached to the frame 1 together with the front panel 10 and the back panel 11 by attaching screws.

A front panel box 12 formed between the upper cover 9 and the front panel 10 has a power switch 13, an operation panel 14 having input switches and a display element group, and an operation panel 14 according to the water level in the outer tank 5. A water level sensor 15 for generating a water level signal and a control unit 16 are incorporated. These constitute a control device.

A back panel box 17 formed between the top cover 9 and the back panel 11 has a built-in washing water supply means and a high-concentration detergent liquid generating means arranged side by side.

The washing water supply means includes a water tap connection port 1 on the water inlet side.
8 and a water supply side connected to a water inlet 19 by a main water supply solenoid valve 20.

The high-concentration detergent liquid producing / supplying means supplies a small amount of detergent dissolving water from the auxiliary water supply solenoid valve 22 to the detergent dissolving container 21 and stirs the powdered synthetic detergent charged in the detergent dissolving container 21. While being dissolved in the detergent dissolving water, a high concentration detergent solution is produced. The detergent dissolving container 21 is provided with a water supply port 19.
The overflowing portion (not shown) is connected to the water supply port, and the generated high-concentration detergent solution is diluted with further water supply (diluted water supply) to increase the amount thereof, thereby overflowing the overflowing portion and supplying it to the water inlet 19. Detergent dissolved water for producing high concentration detergent solution is
The main water supply solenoid valve 20 is also opened for additional dilution by setting the water supply to a small amount that does not cause water to overflow from the overflow part of the detergent dissolving container 21 and diluting water to a detergent concentration preferable for immersion in laundry during dilution water supply. It is configured to supply water to the water inlet 19.

When a detergent dispenser is attached to the detergent dissolving vessel 21, an auxiliary water supply solenoid valve 2 for discharging the finish is provided.
2a is provided.

As shown in FIG. 1, the hot air supply means is provided in the outer tank 2.
Air sucked from the lower part 5a passes through the duct 27 and
It is heated by the heater 29 and blows out from the outlet 30.

The hot air circulating drying means is formed so as to extend vertically upward along a rear outer wall surface of the outer tub 5 from a suction port 5a formed in a side wall near the bottom of the outer tub 5. A water-cooling dehumidifying duct 23 for blocking the washing water that has entered through the suction port 5a, and a cooling water sprinkling unit 2 that is located at an upper portion in the water-cooling dehumidifying duct 23 and supplies cooling water into the duct.
4, a descending air duct 25 which is turned up at a position higher than the water level of the outer tub 5 in the washing operation and extends vertically toward the lower side of the outer tub 5 along the outer wall surface of the outer tub 5; 5, a circulating fan 26 arranged in the lower space to draw air from the downdraft duct 25 to generate circulating air;
A rising air duct 27 extending vertically upward from the discharge port of the circulation fan 26 along the outer wall surface of the outer tub 5;
A heater (PTC heater) 29 for heating the circulating air sent from the hopper 2 and an outlet 30 for blowing the circulating air heated by the heater 29 into the washing and dewatering tub 2 are provided.

A humidity sensor 40 as a humidity detecting means and a first temperature sensor 41 are installed in the descending air duct 25, and a second temperature sensor 42 is installed in an air duct downstream of the heater 29.

In addition, a lint collecting filter (not shown) is installed at the turn-back portion from the upper part of the water-cooled dehumidifying duct 23 to the descending air duct 25.

The water-cooling dehumidifying duct 23, the descending air duct 25, and the rising air duct 27 are mounted on the outer wall surface on the rear side of the outer tub 5 in the circumferential direction of the outer tub 5.

The hot air circulating drying means drains the washing water in the outer tub 5 after washing, rotates the washing and dewatering tub 2 at a high speed, spins the water, and then operates the circulation fan 26 while rotating at a low speed. Thereby, the cooling water supplied from the cooling water sprinkling section 24 into the water-cooled dehumidifying duct 23 in the process of sucking the humid air in the outer tub 5 and the washing and dewatering tub 3 from the suction port 5 a and moving up the water-cooled dehumidifying duct 23. To cool and dehumidify. Thereafter, the cooled and dehumidified air is lowered into the descending air duct 25 and is sucked into the circulation fan 26.
Then, the water is sent to the outlet 30 through the heater 29, heated by the heater 29, and blown toward the vicinity of the inner wall surface in the washing and dewatering tub 2 in a direction opposite to the rotation direction of the washing and dewatering tub 2. The circulating air blown into the washing and dewatering tub 2 in this way touches the laundry in the washing and dewatering tub 2 to dry the laundry.

A clothing input opening 9a formed in the upper cover 9
Is openably and closably covered by an outer lid 31, and the outer tank upper cover 2
The opening 28 a formed in the opening 8 is configured to be opened and closed by the inner lid 32.

The drain port 5 b formed at the bottom of the outer tank 5 is connected to a drain hose 34 via a drain solenoid valve 33. The air trap 5c is connected to the water level sensor 15 via an air tube 35. A base 37 formed of a synthetic resin having legs 36 attached to four corners is attached to the lower edge of the frame 1.

Reference numeral 38 denotes the laundry put into the washing and dewatering tub 2.

FIG. 2 is a vertical sectional side view showing a specific configuration of the above-mentioned washing / drying machine. A description overlapping with the description of FIG. 1 is partially omitted.

The drive unit 6 includes a drive motor 61, an electrically operated clutch mechanism 62, a planetary gear reduction mechanism 63, a center output shaft 64, and an outer output shaft 65.
The mounting base 7 is attached to the lower surface of the outer tub 5 by screws.

The driving motor 61 is a reversible rotating motor of a plurality of stages or a continuously variable transmission. In this embodiment, the rotation speed at which the rotator 4 is rotated while the washing and dewatering tub 2 is stationary at the time of detection, and the rotation speed at which the washing and dehydration tub 2 and the rotator 4 are integrally rotated during wet water supply. And a rotation speed at which the washing and dewatering tub 2 and / or the rotating body 4 are repeatedly rotated forward and backward when the high-concentration detergent liquid is lowered and immersed in the laundry. The rotation speed at which the gears are rotated, the rotation speed at which the washing and dewatering tub 2 and the rotating body 4 are integrally rotated at 950 rpm during dehydration, and the washing and dewatering tub 2 and the rotating body 4 are integrally rotated at 700 rpm during hot air drying. The rotation speed was set at 100 rpm and 35 rpm, and the rotating body 4 was independently rotated.

The planetary gear reduction mechanism 63 has a configuration in which a carrier supporting the planetary gears is connected to the center output shaft 64, the internal gear is connected to the outer output shaft 65, and the sun gear is directly connected to the drive motor 61. .

The electric operation clutch mechanism 62 selectively sets the stirring mode, the washing mode, and the dehydration / drying mode by operating the operation lever 62b with the electric operation device 62a. In the agitation mode, the internal gear of the planetary gear reduction mechanism 63 is engaged with the stationary member to apply a static force to the washing and spin-drying tub 2 so that the rotational force of the drive motor 61 is output to the central output of the planetary gear reduction mechanism 63 and the central output. Axis 64
The rotation of the rotating body 4 is transmitted to the rotating body 4 via the control unit and the cloth amount detection and the cloth quality detection based on the load amount acting on the rotating body 4 are executed. In the washing mode, the rotational force of the drive motor 61 is applied to both the center output shaft 64 and the outer output shaft 65 by rotating the sun gear by the drive motor 61 with the internal gear of the planetary gear reduction mechanism 63 being freely rotatable. The washing is performed by rotating the washing / dewatering tub 2 and the rotating body 4 in the opposite direction repeatedly forward and backward in the opposite direction.
In the dehydration / drying mode, the planetary gear reduction mechanism 62
The inner gear is connected to the drive motor 61 to drive the sun gear and the inner gear integrally by the drive motor 61 to rotate the center output shaft 64 and the outer output shaft 65 in the same direction to rotate the washing and dewatering tub 2. Then, the rotating body 4 is rotated at a low speed in the same direction to perform wet water supply, rotated at a high speed to perform centrifugal dehydration, and rotated at various speeds to perform hot air drying.

FIG. 3 is a block diagram showing an electric configuration of the washing and drying machine.

The control unit 16, which receives power via the power switch 13, is constituted mainly by a microcomputer 16a, and includes a power circuit 16b, a driving device 6, a main water supply solenoid valve 20, an auxiliary water supply solenoid valve 22, a detergent stirring motor. A drive circuit 1 having a group of semiconductor AC switching elements (FLS) for controlling power supply to a solenoid valve 39, a drain solenoid valve 33, a circulation fan 26, a heater 29, and a cooling water spray solenoid valve 24a.
6c.

The drive motor 61 of the drive device 6 has a stator winding 61a and a rotation sensor 61b, and the electric operation clutch mechanism 62 has an electric operation machine 62a and a position sensor 62c for detecting an operation position.

The drive circuit 16c controls the power supply to the stator winding 61a of the drive motor 61 in the drive device 6 with two semiconductor AC switching elements (FLS) 16c1 and 16c2 for forward and reverse rotation control. Is provided. FLS16c1 is a semiconductor switching element for forward rotation power supply control, and FLS16c2 is a semiconductor AC switching element for reverse rotation power supply control. In this embodiment, the rotation speed of the drive motor 61 is controlled by the stator winding 6.
Although the power supply to 1a is performed by controlling the phases by the FLSs 16c1 and 16c2, the configuration using an inverter-driven brushless motor can be configured to be performed by PWM control or PAM control. Further, an FLS 16c3 for controlling power supply of the electric operation clutch mechanism 62 of the driving device 6 to the electric operation device 62a is provided.

The drive circuit 16c includes the main water supply solenoid valve 2
0, water supply solenoid valve 22, detergent stirring motor 39, drainage solenoid valve 33, circulation fan 26, heater 29, cooling watering solenoid valve 2
FLS 16c4 to 16c10 for controlling power supply to 4aa. Then, the drive circuit 16c operates according to instructions from the microcomputer 16a.
By controlling the conduction state of the LS 16c10, the power supply to the subordinate load is controlled.

The microcomputer 16a further includes a rotation sensor 61b of the drive motor 61, a position sensor 62c of the electric operation clutch mechanism 62, a water level sensor 15 for detecting a washing water level in the outer tub 5, a humidity sensor 40, Second
Temperature sensors 41 and 42, unbalance detection sensor 43,
By connecting to the operation panel 14 and executing a control processing program incorporated in advance, the input switch group 14a, the water level sensor 15, and the rotation sensor 61b of the operation panel 14 are provided.
By taking in signals from the position sensor 62c, the humidity sensor 39, the first and second temperature sensors 41 and 42, and the unbalance detection sensor 43 and controlling the drive circuit 16c, detection, high-concentration detergent liquid generation, and laundry The display device group 14 of the operation panel 14 executes each operation of wet, high concentration detergent liquid generation / supply (immersion), washing, rinsing, dehydration and hot air drying.
The progress is displayed by controlling b. Here, the unbalance detection sensor 43 is connected to the washing and dewatering tub 2.
Is a sensor for detecting that the washing and dewatering tub 2 (outer tub 5) swings more than a predetermined value due to the imbalance in the distribution of the laundry 38 in the washing and dewatering tub 2 when is rotated.

Input switch group 14a of operation panel 14
Is provided with a course setting switch for setting the type of operation (washing / drying) to be executed and a mode setting switch for setting a washing and drying execution method according to the laundry (drying). The course setting switch is provided with a setting switch for selectively setting a washing / drying course, a washing course, and a drying course, and the mode setting switch is provided with a standard mode, a shirt mode, a blanket mode, a fresh drying mode, a dry mode,
A switch for selectively setting the finishing mode and the accessory drying mode is provided.

Here, the washing / drying course is a course for consistently executing the operation from washing to drying, the washing course is a course for executing the operation from washing to centrifugal dehydration, and the drying course is This is a course for executing only the drying operation of the laundry that has been washed and dehydrated. In addition, the standard mode is a mode in which the driving of each course is performed in a standard manner, and the shirt mode is a mode in which each course is performed for laundry that is easily wrinkled like a shirt or a blouse. The mode is a mode for executing each course for a bulky laundry such as a blanket, and the fresh drying mode is a mode for executing a course up to drying for a short time to extend the washing wrinkles of the laundry, The dry mode is a mode in which each course is executed for laundry with a dry mark, the finishing mode is a mode in which a finishing drying course is executed for freshly dried laundry, and the accessory drying mode is In this mode, a drying course is executed for laundry that is concerned about its shape, such as a hook and a hat.

Next, each operation will be described.

FIG. 4 is a flowchart of each of the above operations executed by the microcomputer 16a in the control unit 16.

When the power switch 13 is turned on, the microcomputer 16a executes the following control processing.

Step 401 The laundry 38 is put into the washing / dewatering tub 2 and the operation panel 1
4 to operate the input switch group 14a to perform initial setting,
When the washing / drying start button switch is pressed, automatic control processing of each operation is started.

In the initial setting, the course and the mode are selected and set. Here, the operation control when the washing / drying course is set is exemplified.

Step 402 The detection control processing of the amount of the laundry 38 is performed. This cloth amount detection controls the electric operation clutch mechanism 62 of the driving device 6 to the stirring mode in a dry cloth state before water supply, and
1 is energized for a short time to rotationally drive the rotating body 4, and the detection is performed based on the deceleration characteristic in the inertial rotation at the time of deenergization. The amount of washing water and the amount of detergent for generating the washing water having a preferable detergent concentration are calculated and determined based on the detection result (the amount of laundry), and this amount of detergent is displayed on the display element group 14b and corresponds. An amount of the powdered synthetic detergent is charged into the detergent dissolving container 21.

Step 403 Controls the electric operation clutch mechanism 62 of the driving device 6 to the dewatering / drying mode, and operates the driving motor 61 at a low speed to rotate the washing and dewatering tub 2 and the rotating body 4 at a low speed while the main water supply solenoid valve 2 is rotated.
Opening 0, the tap water is supplied directly to the water inlet 19, and the tap water is sprayed on the laundry 38 in the washing and dewatering tub 2. The laundry 38 absorbs the sprayed tap water and becomes moist, and the bulk is reduced. The spray amount of tap water at this time is controlled in accordance with the amount of the laundry 38 detected by the detection operation, and is controlled so as to decrease when the amount of the laundry 38 is small and to increase as the amount of the laundry 38 increases. The amount of tap water sprayed on the laundry 38 is
For example, when the amount of the laundry 38 is less than 4 kg, 4 L
(Liter), 10 kg for 4 kg to 8 kg. This amount of water supply is controlled by the opening time of the main water supply solenoid valve 20.

Then, if necessary, the tap water is left standing for a predetermined time so that the tap water sufficiently penetrates into the laundry 38. The stationary time is controlled according to the amount of the laundry 38 and the amount of the tap water sprayed. The washing and dewatering tub 2 may be in a stopped state during the stationary time for sufficiently permeating the sprayed tap water into the laundry 38. It is good to rotate at speed.

Step 404 The auxiliary water supply electromagnetic valve 22 is opened to supply a small amount of tap water (detergent dissolving water) so as not to overflow the detergent dissolving container 21, and the detergent dissolving supplied to generate the washing water having a preferable detergent concentration. A high-concentration detergent solution is generated by dissolving the powdered synthetic detergent in the container 21 with a small amount of detergent dissolving water while stirring with a rotating body. The amount of the detergent dissolving water is set to an amount suitable for sufficiently dissolving the powder synthetic detergent while the powder synthetic detergent is stirred by the rotating body without overflowing from the overflow portion of the detergent dissolving container 21.

Step 405: The electric operation clutch mechanism 62 of the driving device 6 is controlled to the dewatering / drying mode, and the driving motor 61 is operated at a low speed to rotate the washing / dewatering tub 2 and the rotating body 4 at a low speed to supply the auxiliary water supply electromagnetic force. The valve 22 is opened and diluted detergent water is supplied to the detergent dissolving container 21 to dilute the high-concentration detergent solution and overflow it from the overflow portion to feed it into the water inlet 19 and to supply the main supply electromagnetic valve 2.
0 is opened and water is supplied to the water inlet 19 to dilute the high-concentration detergent solution into a preferable high-concentration detergent solution to wash the laundry 3 in the washing and dewatering tub 2.
8 to sink into the laundry 38.

The high-concentration detergent liquid immersed in the laundry 38 increases its detergency by applying its chemically high detergency to the laundry 38, so that the mechanical force acting on the laundry 38 in the washing operation is reduced. It is possible to reduce the amount of damage and entanglement of cloth by reducing the amount.

The powdery synthetic detergent is composed of a surfactant for removing stains, an alkali agent for assisting the activator, zeolite, enzymes,
Contains additives such as builders such as anti-redeposition agents and optical brighteners. Zeolite functions to reduce the amount of effective surfactant in the wash water by removing (softening) metal ions contained in tap water and suppressing the production of metal soap. In washing water produced by dissolving a powdered synthetic detergent in a large amount of tap water, the amount of zeolite is insufficient and the amount of effective surfactant is greatly reduced.

However, a high-concentration detergent solution produced by dissolving a powdered synthetic detergent in a small amount of tap water (detergent-dissolved water) (for example, a detergent concentration 10 times the detergent concentration of the wash water)
Due to the low amount of metal ions, the zeolite works well and reduces the amount of effective surfactant very small (about 2%
Degree). Therefore, by letting such a high concentration of detergent liquid fall on the laundry to be immersed therein, the detergent liquid is rapidly (approximately 4 times higher than the washing water) applied to the laundry (dirty clothes).
Permeate at twice the speed) and quickly reach the soil, the surfactant promotes the emulsification and dispersion of the soil, the alkali material promotes the swelling and saponification of the oil stain, and the enzyme decomposes the fat and protein stains Demonstrates detergency.

Step 406 This is a time for promoting the high concentration detergent liquid that has fallen on the laundry 38 to permeate and sink into the laundry 38, and may be omitted.

Step 407: The main water supply solenoid valve 20 and the auxiliary water supply solenoid valve 22 are opened to start supplying tap water (wash water). The supply of the washing water is performed up to the amount of water determined in step 402,
During the supply of water, the operation is interrupted in order to detect the amount (cloth value) and the quality of the laundry 38. The suspended water level is a water level suitable for detecting the amount of compress and the quality of the cloth set in the microcomputer 16a in advance.

Step 408: Detect the amount of the compress and the quality of the cloth, correct the amount of water supplied, and wash.
The control constants for the rinsing, dehydration and drying operations are determined.
In this cloth detection, the water supply is interrupted at a predetermined low water level, the electric operation clutch mechanism 62 of the driving device 6 is controlled to the detection mode, the driving motor 61 is energized for a short time, and the rotating body 4 is rotationally driven. The first deceleration characteristic (amount of compress cloth) in the inertia rotation at the time of deenergization is detected, and then the water supply is resumed, the washing water is replenished to a predetermined high water level, the water supply is interrupted, and the drive motor of the drive device 6 is stopped. 61 is energized for a short time to rotate the rotating body 4 to detect a second deceleration characteristic in inertia rotation at the time of deenergization, and to perform washing based on a difference between the first attenuation characteristic and the second attenuation characteristic. The cloth of the object 38 is detected. This cloth detection control
The description is omitted when it becomes unnecessary by the initial setting. Then, a time and a water flow (intensity of mechanical stirring) in the washing and rinsing operations and a control constant in the drying operation are determined in accordance with the cloth quality.

Step 409 Tap water is supplied up to the amount of water determined in step 402.
By this water supply, the washing water has a preferable detergent concentration for washing by further diluting the high-concentration detergent solution. As a result, the laundry 38 is immersed in the washing water having a predetermined detergent concentration in the washing / dehydrating tub 2, and the washing / dehydrating tub 2 and the rotating body 4 are rotated to give the laundry 38 a mechanical detergency. It is in a state suitable for acting.

Step 410: The driving device 6 is controlled so as to perform the washing operation with the washing water flow and washing time set in step 408. In this washing operation, the drive device 6 controls the electric operation clutch mechanism 62 to the washing mode, and repeats the forward / reverse operation of the drive motor 61, thereby repeatedly repeating the washing / dewatering tub 2 and the rotating body 4 in the opposite directions. By rotating, the laundry 38 exerts a mechanical detergency. The mechanical (stirring) force applied to the laundry 38 adjusts the ON / OFF time of the forward / reverse rotation of the washing / dewatering tub 2 and the rotating body 4, adjusts the number of rotations,
It can be controlled by adjusting the washing (stirring) time.

Since this washing and drying machine utilizes the high chemical washing power of the high-concentration detergent solution, even with a small mechanical (agitation) power, the dirt on the laundry 38 is better removed than in the conventional washing system. Therefore, the damage and entanglement of the laundry 38 can be reduced.

Step 411 The drain solenoid valve 33 is opened to drain the washing water out of the machine.

Step 412 The main water supply solenoid valve 20 and the auxiliary water supply solenoid valve 22 are opened to supply rinsing water (tap water) to a set water amount. If necessary, the auxiliary water supply electromagnetic valve 22a is opened to mix the finishing agent.

Step 413: The driving device 6 is controlled to execute the rinsing operation.

Step 414: The drain solenoid valve 33 is opened to drain the rinsing water out of the machine.

Step 415 The drain / electromagnetic valve 33 is kept open, the electric operation clutch mechanism 62 of the driving device 6 is controlled to the dehydration / drying mode, and the driving motor 61 is operated at a high speed so that the washing and dewatering tub 2 is operated.
By rotating the rotating body 4 and the rotating body 4 at a high speed of 950 rpm, the water content of the laundry 38 is centrifugally dehydrated. In a state where the centrifugal spin-drying is completed, the laundry 38 is pressed against the side wall of the washing and spin-drying tub 2 and is attached to the side wall surface.

Step 416 The electric operation clutch mechanism 62 of the driving device 6 is controlled to the dehydrating / drying mode, and the circulating fan 26 is operated while operating the driving motor 61 to rotate the washing / dewatering tub 2 and the rotating body 4. The air in the outer tub 5 is sucked out from the suction port 5a and cooled and dehumidified by cooling water supplied from the cooling water sprinkling section 24 into the water-cooled dehumidifying duct 23 when passing through the water-cooled dehumidifying duct 23. The air is sucked into the circulation fan 26, and the air flows from the circulation fan 26
To the outlet 30 through the heater 29, and is heated by the heater 29 to generate circulating air blown in the direction opposite to the rotation direction of the washing and dewatering tub 2 toward the vicinity of the inner wall surface in the washing and dewatering tub 2. Then, the laundry in the washing / dewatering tub 2 is dried.

This hot air drying operation is described with reference to FIGS.
This will be described in more detail with reference to FIG.

The hot air drying operation is basically performed by operating the circulation fan 26 while rotating the washing / dewatering tub 2 and the rotating body 4 according to a predetermined time schedule set in advance, as described above. The air in the washing and dewatering tub 2 (outer tub 5) is circulated through the ducts 23, 25, and 27, water is sprinkled from the cooling water sprinkling unit 24 to dehumidify the circulating air with water, and the water-cooled and dehumidified circulating air is heated by the heater 29. Depending on the set mode, the amount of the laundry 38, the humidity of the circulating air (the degree of drying of the laundry 38), the temperature, and the unbalance detection result, the washing and dewatering tub 2 and the rotating body 4 Rotation control, operation control of circulation fan 26 and heater 29
And the watering control of the cooling watering unit 24 is executed.

The washing and dewatering tub 2 in this hot air drying operation
Is set to 700 rpm as a quasi-high-speed rotation speed, 100 rpm as a low-speed rotation speed, and 35 rpm as an ultra-low-speed rotation speed. The specific value of each of these rotation speeds is not limited to this value, and can be changed as needed. For example, it is preferable to change according to the cloth amount and the cloth quality. The first drying operation in which the washing and dewatering tub 2 is rotated at the quasi-high rotation speed is suitable for promoting the centrifugal dehydration and heat drying of the laundry 38 at the initial heating stage of the drying operation. . In this initial heating stage, the water-cooled dehumidification of the circulating air is not performed. In the second drying operation in which the washing and dewatering tub 2 is rotated at a lower rotation speed than in the first drying operation, the circulating air is evenly blown into the washing and dewatering tub 2 in a water-cooled dehumidification and drying stage to be executed. Thing 38
It is suitable for touching. The rotation of the washing and dewatering tub 2 at an extremely low rotation speed is suitable for drying by blowing circulating air while rotating the laundry 38 slowly in a shirt mode, blanket mode, dry mode, or accessory drying mode. .

The run-out of the washing and spin-drying tub 2 (outer tub 5) due to the imbalance of the laundry 38 increases as the rotation speed of the washing and spin-drying tub 2 becomes higher. By changing the rotation speed to the low-speed rotation and performing speed control to change the rotation speed to the ultra-low rotation speed when the vibration is detected at the low-speed rotation, the hot-air drying is continued while reducing the inconvenience (vibration and noise) due to the vibration. When the rotation speed is reduced by detecting the runout, the drying time is extended to a required degree of drying by extending the drying time.

When clogging occurs in the hot air circulation path (particularly, the lint collecting filter), the amount of circulating air decreases and the drying efficiency decreases. The clogging is detected by monitoring the temperature difference between the circulating air before and after the heater 29 (the temperature detected by the first and second temperature sensors 41 and 42) or by monitoring the amount of current consumed by the heater 29. I do. The temperature difference of the circulating air increases when the lint collecting filter is clogged and the air volume of the circulating air decreases, and the current consumption of the heater 29 is reduced by using the PTC heater. The degree of clogging of the lint collecting filter is detected by monitoring the temperature difference of the circulating air or the magnitude of the current consumption of the heater 29 because the amount of the circulating air decreases as the air volume of the circulating air decreases due to clogging. Can be.

If the temperature of the air in the washing and dewatering tub 2 is excessively increased, the components of the laundry 38 and the washer / dryer, especially the resin molded components, may be overheated and damaged. In order to prevent such overheating, when the temperature of the circulating air (the temperature detected by the second temperature sensor 41) blown into the washing and dewatering tub 2 from the outlet 30 reaches 106 ° C., the amount of power supplied to the heater 29 is reduced. Control so that

Further, during the hot air drying, the warm air continues to hit the laundry 38 in a state of being biased, and the local (surface) drying of the laundry 38 is advanced to locally increase the temperature of the laundry 38. In order to prevent this, it is desirable that the laundry 38 be replaced (reversed) or loosened in accordance with the degree of progress of the drying so that the warm air evenly touches the laundry 38. The agitation for changing (reversing) and loosening the laundry 38 is as follows.
It is desirable to perform the agitation with an agitation force according to the amount of the laundry 38 and the progress of drying (the degree of drying and the elapse of operation time).
The strength of the stirring force can be changed according to the rotation speed and rotation time of the rotating body 4.

FIG. 5 is a flowchart of the hot air drying control in the standard mode, and shows a first control routine.

Step 501 When this hot air drying operation is started, an operation timer for executing a time schedule is started.

Step 502 Branches to a control routine according to the amount of laundry 38 to be washed. Here, the laundry amount of the laundry 38 adopts the laundry amount detected at the time of washing, and branches depending on whether or not the laundry amount is 2 kg or more, which is a reference value for determining the amount of laundry. When the amount of cloth is large, the process proceeds to step 503.

Step 503 The heater 29 is supplied with power (ON) so as to generate heat in the strong heat generation mode, and the circulation fan 26 is operated (ON) so as to heat while circulating the air in the washing and dewatering tub 2.

Step 504: The washing / dewatering tub 2 and the rotating body 4 are rotated at a semi-high speed of 70.
Drive device 6 is controlled to rotate at 0 rpm (ON)
I do.

Step 505 The detection signal of the humidity sensor 40 is monitored, and a predetermined reference drying degree (here, the resistance value of the humidity sensor 40 is 20 kΩ = corresponding to the state where the drying degree of the laundry 38 has advanced to 95%) Is detected) and control branches.

Step 506 If the degree of drying of the laundry 38 has not reached the reference degree of drying, the drying operation is performed for a predetermined time (the centrifugal dehydration and heating of the laundry 38 by rotating the This is a time suitable for promoting drying, and the current state is continued until the elapse of 10 minutes from the start of the drying operation in this case.

Step 507 When the drying operation time has passed 10 minutes, the rotation of the washing and dewatering tub 2 is stopped and stopped, and the rotating body 4 is repeatedly rotated in the forward and reverse directions to stir and replace the laundry 38. The driving device 6 is controlled so as to perform (inversion) and loosening. The stirring force of the rotating body 4 for the replacement and the loosening is set according to the amount of laundry of the laundry 38. In this control routine, the stirring force of the rotating body 4 is made relatively strong because the amount of laundry is large.

Step 508: The washing / dewatering tub 2 and the rotating body 4 are rotated at a low speed of 100
The driving device 6 is controlled so as to rotate at rpm.

Step 509: The detection signal of the humidity sensor 40 is monitored, and the control is branched by detecting the predetermined reference dryness.

Step 510 If the degree of drying of the laundry 38 has not reached the reference degree of drying, the drying operation is performed for a predetermined time (the washing and spinning tub 2 is rotated at a low rotation speed to accelerate the heating and drying of the laundry 38). It is a time suitable for the drying operation, and here, 2 hours from the start of the drying operation.
(Set to 0 minutes).

Step 511 After a predetermined time (20 minutes) has elapsed in the drying operation, the cooling water is supplied from the cooling water sprinkling section 24 into the water cooling dehumidification duct 23 to start the water cooling dehumidification (water cooling dehumidification drying) of the circulating air. Then, the cooling water spray electromagnetic valve 24a is controlled to open (turn on).

Step 512: Replacement (reversal) of the laundry at a predetermined cycle (here, a 15-minute cycle), loosening, detection of the degree of drying to determine whether or not drying has progressed to the reference degree of drying, and water cooling for rotating the washing / dewatering tub at a low speed. Dehumidification and drying are repeated until a predetermined time has elapsed. This predetermined time is a time when water-cooled dehumidification drying is desired, and is set here to 300 minutes from the start of the drying operation.

Step 513 In steps 509 and 512, it is detected that the degree of drying has reached the reference degree of drying, or when the drying operation in step 512 has passed a predetermined time (300 minutes), an end operation is executed. In this end operation, the driving device 6 is controlled so that the heat generation of the heater 29 is stopped (turned off), and the replacement (reversal) and unraveling of the laundry 38 is repeated for a predetermined time (here, 10 minutes is set). After that, the driving device 6, the circulation fan 26, and the cooling water sprinkling electromagnetic valve 24a are stopped (turned off), and the process ends.

Step 514 When it is detected in step 505 that the degree of drying of the laundry 38 has reached the reference degree of drying, the power supply to the heater 29 is controlled so that the heater 29 generates heat in the weak heat generation mode.

Step 515 The rotation of the washing and dewatering tub 2 is stopped and stopped, and the rotating body 4 is repeatedly rotated in the forward and reverse directions.
The drive device 6 is controlled so as to perform the replacement (reversal) and the loosening by stirring the 8.

Step 516: The washing and dewatering tub 2 and the rotating body 4 are rotated at a low speed of 100
The driving device 6 is controlled so as to rotate at rpm.

Step 517 The drying operation is a predetermined period of time (a period suitable for promoting the heating and drying of the laundry 38 by rotating the washing and dewatering tub 2 at a low rotation speed. Minutes).

Step 518 When a predetermined time (10 minutes) has elapsed in the drying operation, the cooling water is supplied from the cooling water sprinkling section 24 into the water cooling dehumidification duct 23 to start the water cooling dehumidification (water cooling dehumidification drying) of the circulating air. The opening of the cooling watering electromagnetic valve 24a is controlled.

Step 519 The laundry is replaced (reversed) and loosened at a predetermined cycle (15-minute cycle), and the water-cooled dehumidifying drying for rotating the washing / dewatering tub at low speed is repeated. After the elapse of 50 minutes from the start of the operation), the operation shifts to the end operation of the step 513.

FIG. 6 is a flowchart of the hot air drying operation control in the standard mode, and shows a second control routine. The second control routine is a control executed when the laundry amount of the laundry 38 is small.

Step 520: The power is supplied to the heater 29 so as to generate heat in the strong heat generation mode, and the circulation fan 26 is operated so as to heat while circulating the air in the washing and dewatering tub 2.

Step 521: The washing / dewatering tub 2 and the rotating body 4 are rotated at a semi-high speed of 70
The driving device 6 is controlled to rotate at 0 rpm.

Step 522 The detection signal of the humidity sensor 40 is monitored and a predetermined reference drying degree (here, the resistance value of the humidity sensor 40 is 20 kΩ = corresponding to the state where the drying degree of the laundry 38 has advanced to 95%) Is detected) and control branches. When the degree of drying of the laundry 38 has advanced to the reference degree of drying, step 51
Move to 4.

Step 523 If the degree of drying of the laundry 38 has not reached the reference degree of drying, the drying operation is performed for a predetermined period of time (the centrifugal dehydration and heating of the laundry 38 by rotating the This is a time suitable for promoting drying, and the current state is continued until the elapse of 10 minutes from the start of the drying operation in this case.

Step 524 After a predetermined time (10 minutes) has elapsed in the drying operation, the cooling water is supplied from the cooling water sprinkling section 24 into the water cooling dehumidification duct 23 to start the water cooling dehumidification (water cooling dehumidification drying) of the circulating air. The opening of the cooling watering electromagnetic valve 24a is controlled.

Step 525 The rotation of the washing and dewatering tub 2 is stopped and stopped, and the rotating body 4 is repeatedly rotated in the forward and reverse directions so that the laundry 3
The drive device 6 is controlled so as to perform the replacement (reversal) and the loosening by stirring the 8. The stirring force by the rotating body 4 for the replacement and the loosening is set according to the amount of laundry of the laundry 38. In this control routine, the stirring force by the rotating body 4 is made relatively weak because the amount of laundry is small.

Step 526 The washing / dewatering tub 2 and the rotating body 4 are rotated at a low speed of 100.
The driving device 6 is controlled so as to rotate at rpm, and the routine proceeds to step 512.

FIG. 7 is a flowchart of hot air drying control in the shirt mode.

Step 701 When the hot air drying operation is started, an operation timer for executing a time schedule is started.

Step 702 The heater 29 is caused to generate heat in the weak heat generation mode, and
The power supply to the heater 29 is controlled (turned on) so that the temperature of the warm air blown out from the washing and dewatering tub 2 into the washing and dewatering tub 2 becomes 70 ° C. or less, which is preferable for drying the shape memory cloth product (the laundry). The circulation fan 26 is operated (turned on) so as to heat while circulating the air in the dewatering tank 2, and the cooling water is supplied from the cooling water sprinkling section 24 into the water-cooling dehumidification duct 23, whereby the water is cooled and dehumidified (water-cooled dehumidification). The cooling spraying electromagnetic valve 24a is controlled to be open (on) so as to start drying).

Step 703: The washing and spin-drying tub 2 and the rotating body 4 are rotated at an extremely low speed of 35.
The driving device 6 is controlled so as to rotate at rpm. Such an ultra-low rotation speed is suitable for preventing a wrinkle caused by advancing drying in a state where a large centrifugal force acts on the laundry 38 and is pressed against the side wall surface of the washing and dewatering tub 2. is there.

Step 704 The detection signal of the humidity sensor 40 is monitored, and a predetermined reference drying degree (here, the resistance value of the humidity sensor 40 is 20 kΩ = corresponding to the state where the drying degree of the laundry 38 has advanced to 95%) Is detected) and control branches. When the drying is progressing to a predetermined reference degree of drying, step 7 to be described later is performed.
Move to 06.

Step 705 If the degree of drying of the laundry 38 has not reached the reference degree of drying, the drying operation is performed for a predetermined period of time (by rotating the washing / dewatering tub 2 and the rotating body 4 at an extremely low rotation speed, This is a time suitable for promoting water-cooled dehumidification and drying, and the current condition is continued until the elapse of 10 minutes from the start of the drying operation.

Step 706: Turn off (stop) the cooling watering electromagnetic valve 24a and the heater 29,
Semi-dryness of the laundry 38 (the resistance value of the humidity sensor 40 is 2
The state of 5 kΩ = corresponding to the state in which the degree of drying of the laundry 38 has advanced to 98%) and the detection and loosening are executed for a predetermined time (here, set to 5 minutes).

Step 707: The heater 29 is turned on in the weak heat generation mode, the cooling watering electromagnetic valve 24a is turned on, and the quasi-complete drying degree of the laundry 38 (the state where the resistance value of the humidity sensor 40 is 25 kΩ = the drying degree of the laundry 38) Corresponds to a state in which has progressed to 98%), laundry 3
8 is executed for a predetermined time (here, set to 5 minutes).

Step 708 Steps 7 and 8 are repeated until a predetermined time (47 minutes is set here) from the start of drying.

Step 709: The heater 29 is turned off (heat generation is stopped), and a predetermined time (3 minutes)
After the cooling operation is continued until the elapse, the driving device 6, the cooling water spray electromagnetic valve 24a, and the circulation fan 26 are turned off (stopped) to end the drying operation.

FIG. 8 is a flowchart of a first control routine of hot air drying control in the blanket mode.

Step 801 When the hot air drying operation is started, an operation timer for executing a time schedule is started.

Step 802 The heater 29 is set to generate heat in the weak heat generation mode.
The circulation fan 26 is operated so as to control the power supply to the washing 9 and to heat while circulating the air in the washing and dewatering tub 2.

Step 803: The washing / dewatering tub 2 and the rotating body 4 are rotated at a semi-high speed of 70.
The driving device 6 is controlled to rotate at 0 rpm. The drying operation at the semi-high rotation speed is performed for a predetermined time (the laundry (blanket) is rotated by rotating the washing and dewatering tub 2 at the semi-high rotation speed).
This is a time suitable for accelerating the centrifugal dehydration and heat drying of No. 38, and the present condition is continued until the elapse of 10 minutes from the start of the drying operation in this case.

Step 804 When the drying operation time exceeds 10 minutes, the washing and dewatering tub 2 is stopped and stopped, and the rotating body 4 is repeatedly rotated in the forward and reverse directions to stir and replace the laundry 38. The driving device 6 is controlled so as to perform (inversion) and loosening.

Step 805 The cooling water is supplied from the cooling water sprinkling section 24 into the water-cooling dehumidifying duct 23, whereby the circulating air is subjected to water-cooling dehumidification (water-cooling dehumidifying drying).
The opening of the cooling watering electromagnetic valve 24a is controlled so as to start. Then, the driving device 6 is operated so as to rotate the washing / dewatering tub 2 and the rotating body 4 at 35 rpm, and the quasi-complete drying degree of the laundry 38 (the state where the resistance value of the humidity sensor 40 is 25 kΩ =
The detection of the degree of drying of the laundry 38 that has progressed to 98% is performed for a predetermined time (here, set to 3 minutes).

Step 806: The cooling and sprinkling electromagnetic valve 24a is closed (off), and the
And the quasi-complete drying degree of the laundry 38 (the state where the resistance value of the humidity sensor 40 is 25 kΩ = corresponding to the state where the drying degree of the laundry 38 has advanced to 98%) while rotating the rotating body 4 at 35 rpm. This is executed for a predetermined time (here, set to 3 minutes).

Step 807 The rotation of the washing and dewatering tub 2 is stopped and stopped, and the rotating body 4 is repeatedly rotated in the forward and reverse directions.
The drive device 6 is controlled so as to perform the replacement (reversal) and the loosening by stirring the 8.

Step 808 Steps 805, 806 and 807 are repeated until the drying operation time elapses a predetermined time (here, 240 minutes).

Step 809: The power supply to the heater 29 is turned off, and the cooling operation is continued until a predetermined time (5 minutes) elapses, and then the driving device 6, the cooling water spray solenoid valve 24a, and the circulation fan 26 are turned off (stopped) to perform the drying operation. To end.

FIG. 9 is a flowchart of a second control routine executed when it is detected in steps 805 and 806 that the drying of the laundry 38 has advanced to the quasi-complete drying degree.

Step 811 Cooling water is supplied from the cooling water sprinkling section 24 into the water-cooled dehumidifying duct 23, so that the circulating air is cooled by water (water-cooled dehumidifying and drying).
The opening of the cooling watering electromagnetic valve 24a is controlled so as to start. Then, the driving device 6 is operated so as to rotate the washing and dewatering tub 2 and the rotating body 4 at 35 rpm, and the quasi-complete drying degree of the laundry 38 (the state where the resistance value of the humidity sensor 40 is 70 kΩ =
Dryness of general laundry (clothing) 38 is 115 to 12
(Corresponding to the state of progress to 0%) is executed for a predetermined time (here, set to 3 minutes).

Step 812: The cooling and sprinkling electromagnetic valve 24a is closed (off), and the
Then, while rotating the rotating body 4 at 35 rpm, detection of the quasi-complete drying degree of the laundry 38 (the resistance value of the humidity sensor 40 is 70 kΩ) is executed for a predetermined time (here, set to 3 minutes).

Step 813: The washing and dewatering tub 2 is stopped and stopped, and the rotating body 4 is repeatedly rotated in the forward and reverse directions, so that the laundry 3
The drive device 6 is controlled so as to perform the replacement (reversal) and the loosening by stirring the 8.

Step 814 Steps 811, 812, and 813 are repeated until the drying operation time elapses a predetermined time (here, 240 minutes).

When the resistance value of the humidity sensor 40 exceeds 70 kΩ in the above steps 811, 812, or
When the predetermined time has elapsed in step 814, the process proceeds to step 809.

Next, hot air drying control in the raw drying mode will be described. In the fresh drying mode, the replacement and loosening, drying degree detection, and water-cooled dehumidification drying in step 512 of the standard mode are performed for a predetermined time (the time until the laundry 38 becomes a freshly dried state, in this case, 27 minutes from the start of hot air drying). (Set to elapse) until the time elapses.

FIG. 10 is a flowchart of the hot air drying control in the dry mode.

Step 1001 When the hot air drying operation is started, an operation timer for executing a time schedule is started.

Step 1002 Power is supplied to the heater 29 so as to generate heat in the weak heat generation mode, and the circulation fan 26 is operated so as to heat while circulating the air in the washing and dewatering tub 2. The heating and drying for controlling the driving device 6 so as to rotate the motor 4 at an ultra-low speed of 35 rpm is performed until a predetermined time (in this embodiment, set to 10 minutes from the start of the drying operation).

Step 1003 The cooling / sprinkling electromagnetic valve 24a is opened, and water-cooled dehumidification drying is performed for 3 minutes.

Step 1004 The cooling and spraying electromagnetic valve 24a is closed and heating and drying are performed for 3 minutes.

Step 1005 Steps 1003 and 1004 are executed for a predetermined time (55 or 115 minutes from the start of the drying operation) preset by the input switch group 14a.

Step 1006 The heat generation of the heater 29 is stopped, and after that, the cooling operation is continued for a predetermined time (here, 3 minutes), and then the driving device 6, the circulation fan 26, and the cooling water spray electromagnetic valve 24a are stopped and the process is ended.

Next, the hot air drying control in the finishing mode will be described. This finishing mode is a control based on the standard mode described above, and therefore will be described with reference to FIGS. 5 and 6, and redundant description will be omitted.

In this finishing mode, the amount of clothes is determined (step 502). The laundry 38 is agitated and loosened by repeatedly rotating the rotating body 4 in the forward and reverse directions while the washing and dewatering tub 2 is stationary. Is performed, and then detection for determining the amount of cloth is performed. This loosening is omitted in hot air drying that is continued after washing and dehydration.

The rotation speed of the washing and dewatering tub 2 in steps 504 and 521 is set to the low rotation speed (100 rpm).
pm).

The predetermined time in steps 506 and 523 is set to 5 minutes from the start of the drying operation.

The predetermined time in step 510 is set to 10 minutes from the start of the drying operation.

The predetermined cycle in step 512 is set to a 4-minute cycle, and the predetermined time is set to 150 minutes from the start of the drying operation.

The predetermined time in step 519 is set to 30 minutes from the start of the drying operation.

Next, the accessory drying mode will be described with reference to FIG. Since the accessory drying mode is a drying mode for laundry that is worried about its shape, such as a duck or a hat, the accessory is placed in the washing and dewatering tub 2 (actually, The washing and dewatering tub 2 is heated at a relatively low temperature (here, set to 60 ° C. or less) while rotating the washing and dewatering tub 2 and the rotating body 4 at a super-high speed rotation so that the laundry does not shift. The cooling water supply to the cooling water sprinkling unit 24 is intermittently performed so as to perform water cooling and dehumidification while saving water.

Step 1101 When this hot air drying operation is started, an operation timer for executing a time schedule is started.

Step 1102 The circulation fan 26 is operated to start circulation of the air in the washing / dewatering tub 2.

Step 1103 Power is supplied to the heater 29 so as to heat the circulating air by generating heat in the weak heat generation mode, and the driving device 6 rotates the washing / dehydrating tub 2 and the rotating body 4 at an extremely low speed of 35 rpm.
Control. This state is continued for a predetermined time (here, set to 2 minutes).

Step 1104: The power supply to the heater 29 is turned off (heat generation is stopped), and the control state for rotating the washing / dewatering tub 2 and the rotating body 4 at an extremely low speed (35 rpm) is set for a predetermined time (here, 2 minutes). )continue.

Step 1105 Steps 1103 and 1104 are repeated for a predetermined period of time (here, set until the elapse of 12 minutes from the start of the drying operation).

Step 1106 Electric power is supplied to the heater 29 so as to heat the circulating air by generating heat in the weak heat generation mode.
The cooling water sprinkling electromagnetic valve 24 is started so that the cooling water is supplied into the cooling water 3 to start the water cooling dehumidification (water cooling dehumidification drying) of the circulating air.
a is controlled to be opened, and the control state of rotating the washing and dewatering tub 2 and the rotating body 4 at an extremely low speed (35 rpm) is continued for a predetermined time (here, set to 2 minutes).

Step 1107: The power supply to the heater 29 is turned off, and the cooling water spray electromagnetic valve 24a is turned off so as to stop the supply of the cooling water into the water-cooling and dehumidifying duct 23.
Is closed, and the control state in which the washing and spin-drying tub 2 and the rotating body 4 are rotated at an extremely low speed (35 rpm) is continued for a predetermined time (here, set to 2 minutes).

Step 1108 Steps 1106 and 1107 are repeated for a predetermined period of time (here, set until 97 minutes have passed since the start of the drying operation).

Step 1109: The heat generation of the heater 29 is stopped. After that, the cooling operation is continued for a predetermined time (here, three minutes), and then the driving device 6, the circulation fan 26, and the cooling water spray electromagnetic valve 24a are stopped and the process is terminated.

[0160]

According to the present invention, an efficient washing and drying machine can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a washing and drying machine according to an embodiment of the present invention in a longitudinal section.

FIG. 2 is a vertical sectional side view showing a specific configuration of the washing / drying machine shown in FIG.

FIG. 3 is a block diagram showing an electrical configuration of the washing and drying machine shown in FIGS. 1 and 2;

FIG. 4 is a flowchart of a washing, spin-drying and drying operation executed by a microcomputer in the control unit shown in FIG. 3;

FIG. 5 is a flowchart of a first control routine of hot air drying control in a standard mode.

FIG. 6 is a flowchart of a second control routine of hot air drying control in a standard mode.

FIG. 7 is a flowchart of hot air drying control in a shirt mode.

FIG. 8 is a flowchart of a first control routine of hot air drying control in a blanket mode.

FIG. 9 is a flowchart of a second control routine of hot air drying control in a blanket mode.

FIG. 10 is a flowchart of hot air drying control in a dry mode.

FIG. 11 is a flowchart of hot air drying control in the accessory drying mode.

[Explanation of symbols]

2 ... Washing and dewatering tub, 6 ... Driver, 23 ... Water-cooled dehumidifying duct, 24 ... Cooling sprinkling section, 24a ... Cooling sprinkling solenoid valve, 26
... circulation fan, 29 ... heater, 40 ... humidity sensor, 4
1, 42 ... temperature sensors.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Katsuhisa Aida 1-1-1, Higashitaga-cho, Hitachi City, Ibaraki Prefecture Within Hitachi Taga Electronics Co., Ltd. (72) Inventor Tamotsu Kamori 1-1-1, Higashitaga-machi, Hitachi City, Ibaraki Prefecture No. 1 Hitachi Taga Electronics Co., Ltd. (72) Inventor Kenichi Ogoshi 1-1-1, Higashi Taga-cho, Hitachi City, Ibaraki Prefecture (72) Inventor Hideaki Munegata Higashi Taga-cho, Hitachi City, Ibaraki Prefecture No. 1-1, Hitachi Taga Electronics F-term (reference) 3B155 AA16 BB14 BB15 BB16 CB07 CB52 CB53 HB02 KA29 KA33 LA02 LB18 LC28 MA02 MA06 MA08 4L019 EA01 EA05 EB01 EC06

Claims (12)

[Claims] 1. A washing and dewatering tub installed in an outer tub, a rotating body installed at the bottom of the washing and dewatering tub, a driving device for rotating the washing and dewatering tub and the rotating body, and a hot air supply. Hot air supply means, and a control device for controlling the driving means and the hot air supply means. In the drying operation, the hot air supply means supplies hot air and the washing and dewatering tub is rotated to operate. A washing / drying machine wherein the drying operation in (1) is rotated at a higher speed than the second drying operation in which the washing and dewatering tub is rotated and operated. 2. A washing and dewatering tub installed in an outer tub, a rotating body installed at the bottom of the washing and dewatering tub, a driving device for rotating and driving the washing and dewatering tub and the rotating body, and a drainage solenoid valve. ,
A hot air supply unit for supplying hot air, the drive unit, the drainage solenoid valve, and a control device for controlling the hot air supply unit; and in the drying operation, hot air is supplied by the hot air supply unit. A first drying operation in which the washing and dewatering tub is rotated while the drainage electromagnetic valve is opened to perform a dehydration operation;
A second drying operation for rotating the washing and dewatering tub at a lower speed than the drying operation of the washing and drying machine. 3. The washing and drying machine according to claim 1, further comprising a water-cooling dehumidifier for cooling and dehumidifying the air in the outer tub, and performing the second drying operation after the first drying operation. A washing / drying machine, wherein the water-cooled dehumidifier is operated from the second drying operation. 4. The washing and drying machine according to claim 1, further comprising a water-cooling dehumidifier for water-cooling and dehumidifying the air in the outer tub, and performing the second drying operation after the first drying operation. A washing / drying machine, wherein the water-cooled dehumidifier is operated from the second drying operation, and the first drying operation time is set according to an amount of laundry. 5. The water-cooling and dehumidifying means according to claim 1, wherein the washing and drying machine includes a water-cooling dehumidifier for water-cooling and dehumidifying the air in the outer tub.
A washing / drying machine comprising: humidity detecting means for detecting the humidity of air in the outer tub; and operating the water-cooled dehumidifying means when the humidity decreases to a predetermined value during the first drying operation. 6. The washing and dewatering tub according to claim 1, wherein rotation of the washing and dewatering tub is stopped in the first drying operation and / or the second drying operation, and the laundry is rotated by rotating the rotating body. A washing / drying machine characterized by that: 7. The washing and dewatering tub according to claim 1, wherein rotation of the washing and dewatering tub is stopped in the first drying operation and / or the second drying operation. A washing / drying machine characterized by rotating with a rotating force. 8. The washing and drying machine according to claim 1, further comprising a function of selecting only a drying operation. 9. The control device according to claim 1, wherein the control device sets a course setting switch for setting a type of operation (washing / drying) to be executed and a method for executing washing and drying according to the laundry (drying material). A washing / drying machine comprising a mode setting switch for setting. 10. The control device according to claim 1, wherein the controller performs the drying operation in the drying mode for the laundry that is likely to wrinkle while rotating the washing and spinning tub at an extremely low speed. A washing and drying machine characterized in that: 11. A washing and dewatering tub installed in an outer tub, a rotating body installed at the bottom of the washing and dewatering tub, a driving device for rotating the washing and dewatering tub and the rotating body, and supplying hot air. Hot air supply means, and a control device for controlling the driving means and the hot air supply means. In the drying operation, hot air is supplied by the hot air supply means, and the washing and dewatering tub is set in accordance with the amount of the laundry. A washing and drying machine characterized by being rotated at a different rotation speed. 12. A washing and dewatering tub installed in an outer tub, a rotating body installed at the bottom of the washing and dewatering tub, a driving device for rotating the washing and dewatering tub and the rotating body, and supplying hot air. Hot air supply means, and a control device for controlling the driving means and the hot air supply means. In the drying operation, hot air is supplied by the hot air supply means, and the washing and dewatering tub is set according to the quality of the laundry. A washing and drying machine characterized by being rotated at a different rotation speed.